The aim of this article is to draw attention of the current scale of forced environmental migrations worldwide. There have been a number of attempts over the decades to enumerate environmental migrants and refugees. Jodi Jacobson (1988) is cited as the first researcher to enumerate the issue, stating that there were already up to 10 million ‘Environmental Refugees’. Drawing on ‘worst-case scenarios’ about sea-level rise, she argued that all forms of ‘Environmental Refugees’ would be six times as numerous as political refugees. (1988: 38). Myers argued that the causes of environmental displacement would include desertification, lack of water, salination of irrigated lands and the depletion of bio-diversity. He also hypothesised that displacement would amount to 30m in China, 30m in India, 15m in Bangladesh, 14m in Egypt, 10m in other delta areas and coastal zones, 1m in island states, and with otherwise agriculturally displaced people totalling 50m (Myers & Kent 1995) by 2050. Forced environmental migrations are one of the greatest problems that international community must face in next years. The issue of forced environmenetal migrants was also pointed out by many others scholars (e.g. Etienne Piguet; Francoise Gemenne; Bogumil Terminski; Koko Warner and many others). We present the most important theoretical approaches to the issue of forced environmental migrations.